Make progress print on the same line.

Author: skorokithakis

libraries/ArduinoOTA/examples/BasicOTA/BasicOTA.ino

@@ -33,7 +33,7 @@ void setup() {
     Serial.println("End");
   });
   ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
-    Serial.printf("Progress: %u%%\n", (progress / (total / 100)));
+    Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
   });
   ArduinoOTA.onError([](ota_error_t error) {
     Serial.printf("Error[%u]: ", error);